+ /* For the rare target where pointers are not the same size as
+ size_t, we need to check for mis-matched modes and correct
+ the addend. */
+ if (op0 && op1
+ && GET_MODE (op0) != VOIDmode && GET_MODE (op1) != VOIDmode
+ && GET_MODE (op0) != GET_MODE (op1))
+ {
+ if (GET_MODE_BITSIZE (GET_MODE (op0)) < GET_MODE_BITSIZE (GET_MODE (op1)))
+ op1 = gen_rtx_TRUNCATE (GET_MODE (op0), op1);
+ else
+ /* We always sign-extend, regardless of the signedness of
+ the operand, because the operand is always unsigned
+ here even if the original C expression is signed. */
+ op1 = gen_rtx_SIGN_EXTEND (GET_MODE (op0), op1);
+ }
+ /* Fall through. */